added libs

Dockerfile

@@ -11,6 +11,8 @@ ENV PYTHONUNBUFFERED 1
 # This is where your application's code will live.
 WORKDIR /app
 
+RUN apt-get update && apt-get install -y libgl1-mesa-glx
+
 # Copy the requirements file into the container at /app.
 # This is done as a separate step to take advantage of Docker's layer caching.
 # If your requirements don't change, this layer won't be rebuilt, speeding up future builds.